{"paper":{"title":"Fermion Thermal Field Theory for a Rotating Plasma (with Applications to Neutron Stars)","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Rotation makes the neutrino production rate from direct URCA processes grow without bound as angular velocity approaches the inverse plasma size.","cross_cats":["astro-ph.HE","hep-th"],"primary_cat":"hep-ph","authors_text":"Alberto Salvio","submitted_at":"2025-12-18T19:00:07Z","abstract_excerpt":"This paper provides a systematic and complete study of thermal field theory with fermion fields of any kind for generic equilibrium density matrices, which feature arbitrary values not only of temperature and chemical potentials, but also average angular momentum. This extends a previous study that focused on scalar fields, to all fermion-scalar theories. Both Dirac and Majorana fermions and both Dirac and Majorana masses are covered. A general technique to compute ensemble averages is provided. Path-integral methods are developed to study thermal Green's functions (with an arbitrary number of"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"the neutrino production rate due to the direct URCA (DU) processes grows indefinitely as the angular velocity approaches the inverse linear size of the plasma and, therefore, rotation can significantly increase this rate.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The assumption that a rotating plasma can be described by a generic equilibrium density matrix with arbitrary average angular momentum while remaining in thermal equilibrium, without specifying how this state is prepared or maintained against dissipation.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Extends thermal field theory to fermions with angular momentum and shows neutrino production in rotating neutron stars grows indefinitely with angular velocity near the inverse system size.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Rotation makes the neutrino production rate from direct URCA processes grow without bound as angular velocity approaches the inverse plasma size.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"c0671b78b439eaf45839637bca4b4915a6f9832361c577f606441e8c321cbadd"},"source":{"id":"2512.16993","kind":"arxiv","version":2},"verdict":{"id":"6101c3bb-178b-41f1-beee-d9877c939d99","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-16T20:56:56.146044Z","strongest_claim":"the neutrino production rate due to the direct URCA (DU) processes grows indefinitely as the angular velocity approaches the inverse linear size of the plasma and, therefore, rotation can significantly increase this rate.","one_line_summary":"Extends thermal field theory to fermions with angular momentum and shows neutrino production in rotating neutron stars grows indefinitely with angular velocity near the inverse system size.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The assumption that a rotating plasma can be described by a generic equilibrium density matrix with arbitrary average angular momentum while remaining in thermal equilibrium, without specifying how this state is prepared or maintained against dissipation.","pith_extraction_headline":"Rotation makes the neutrino production rate from direct URCA processes grow without bound as angular velocity approaches the inverse plasma size."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2512.16993/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":42,"sample":[{"doi":"10.1017/cbo9780511721700","year":2011,"title":"Bellac,Thermal Field Theory, Cambridge Monographs on Mathematical Physics, Cambridge University Press (3, 2011), 10.1017/CBO9780511721700","work_id":"3b815a73-bbe3-45d9-bc7a-9ee8db9f4ba2","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2005,"title":"Quantum field theory: A modern perspective,","work_id":"8543fd34-2466-4ebe-917f-d77ea116df6e","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1016/0370-1573(87)90121-9","year":1987,"title":"Real and Imaginary Time Field Theory at Finite Tempera- ture and Density ,","work_id":"bb7d22cc-93b8-4d10-ba13-2fd357772ffa","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1994,"title":"Field theory at finite tempera- ture and phase transitions,","work_id":"df057e3e-e73e-4f57-bd3d-efc780cfeea5","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.1007/978-3-","year":2016,"title":"2023.Parallel Programming for Multicore and Cluster Systems(3 ed.)","work_id":"cf4c4e77-acaa-46b4-b066-ddf045165d05","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":42,"snapshot_sha256":"a797e3058c3f3bca3013034c9df9aadf4cde9ab91f6292ead659307328b21542","internal_anchors":6},"formal_canon":{"evidence_count":2,"snapshot_sha256":"a46c7798240257467eff74e4c10f64270d3d7af40e1b36513e1d7bcb092d2ece"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}